Process of making molds.



"A, c. MorrT, JB. y PROCESS' OP MAKING MOLDS. APBLIOATION FILEDJUNB'zp', 1912.

` a' C y///////////////////////////////// Patented sept. 23, 1913 A. O.MOTT, Jn. PROCESS 0F IAKING HOLDS. Annunci rmsn :un aq. ma.

1,074,006. Patented sept` 23,1913.

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UNITED saines BRAM o. Mo'r'r, am., or PHILABNLP'HI'A, PENNsYLvANla,.assieme To nenni/icon srovs COMPANY, or PHILADELPHIA. PENNSYLVANIA, Acoaroae'riou or PENN SYLVANIA.

To allwhlomz't may concern:

Be it known thatl I, ABRAM C. Mora', Jr., a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, have invented certainImprovements in' the v Process of Making Molds, of which the followingis a" the handling of the flasks in making the mold. 1.. In the'accompanying drawings :"-Flgures l to l0, inclusive, illustratev thesteps ini the process of making a'mold; the viewsy being'in diagrammaticsection.

Inthe present instance, I have illustrated my' improved processl inconnection with what is known as a turn-over table, formingl 4part of amolding machine, but-it Will be understood that the invention can becarried out Without the use of a molding machine, if desired.

In Fig. l of the drawings l have shown a bearing A forming part of theframe of a molding'macnine to which the. turn-over frame B pivoted. D isthe table ont-o which the flasks are turned. C isa section of a flask,which is secured to the frame B in any suitable manner. Mounted in thisflask is the match board 0, having a pattern This pattern, 1n thepresent instance. 1s

c. deep and extends to a considerable depth in trated in Fig. yl, thesand c rammed in the flask E and in the depression in the pat-- tern a,as in Fig. l. rl`hen the 'bottom board F is placed on the flask, asillustrated in F ig. 2, and the fasteners which are piv-- otally mountedon the Hask C are passed over the bottom board, as shown, so as tosecure the bottom board to the tlask. The next step in the-process is toturn the frame B on its pivot so as to deposit the flask on the table D;the bottom board F resting on the table, as shown in F ig. 8. Thesection C of the flask is then rammed, as illustrated in Fig. 3, and thesprue z' is inserted at this p l the tlaskC, the vmoli PROCESS or MaxineMoms.

Specification of Letters Patent. .A Pajgntd Sapri-23, 1913, Applicationfiled J une 20, l14912. :Serial No.704-;607. v

"ing'ppening 1 o separate the sand previous-to the rammii'igr-,of Ithesand inthe tlask @,the mold supportslc" 'are Vprojected into the ila'sl,as shownin Fig. 3, so" that Whenthe' sand is `rammed therein'ityWillberetained .in the flask;A Thehooks F) are then removed'and thetable' D lower' il.. 'As the tableislOW- ered, the `match hoard@ andbottom section E of the flask are drawn awayfrom the top section C, asshown in Fig. fl, and,

stepyin `the process so assto form the poursired. Asilinstratedi.. 1 ig.5, both the upper vand lower sections ofthe mold are now free of thepattern. -The f tme B is then turned back to its original position, Fig. 5, with the flask C and the iippe'r half of the mold therein,exposing the vi'natch board and the pattern which .aile .llien readilyremoved from the lower pertltn of the mold; leaving the othervhaltloilll'tlie mold inthe position illustrated inlig. 6. The frame Bis then turned over again so as to bring the upper half of the mpllddirectly in line With the lowerhalf on th1 table D. The table is thenraised sov as' ring thelo'wer half of the ino-ld in contactivith theupper half, Fig. 7. Then the mold supports o are Withdrawn and the tableagain lowered, and, as there lis nothing to support thesand within lisWithdrawn from `the can* be reml l parts fot thev sand resting on 'thebottom board F.

mold' together intact and .At this moved from the table D.

i preferably make the iasks tapered, as shown, thus'makirmr the moldwith tapered exterior Walls, and I mount a 'trame (l on the mold beforepouring. This trame has hooks y pivoted thereto, which extend under thebottom. board and hold the tranne (i in place on the mold, after whichthe metal can he poured into the mold. This frame not only '.'f'orms thesupport for the sides oithe mold` but also holds the mold point, theboard with the mold canv be reagainst movenwnt of the sand lne topuurupon the continued downward movement of ind the iE-rame turned,` i7, aftervhichfthe' flask" f 9, leaving the. `two ngpsothatl'tp Weights,:usually employed, on top of the match board; ramming the I can vbedispensed with. v -4 last mentioned mold with sand; then mount- -25 Iperforate the sides of `the lframe, as ing the bottom board thereon;securin the shown, vnotonly tolighten the frame, 4but bottom board tothe two f sections lo the also to lpermit the gases-to escape which mayflask` with the match board between the pass through the sand 'ofthemold. l flasks; turning over the flasks with the bot- -Thus it Willbeseen, yby Vmy improved tom board; ramming the first flask with 30 Iprocess, that I- y'can quickly.: and accurately sand While the flasksare jstll secured toform sand moldsand can luse the flasks over gether;releasingand separating' the .ilasks and over again, prior tothe pouringopera- 'with the sections of themolds from the tion. It is also, to benoted that I provide pattern; removing the pattern; replacing for theretaining 0f the sand in the *moldthe flasks Iwith the molds therein;detachin 36 during the pouring operation andv this frame the firstmentioned flask from its moldyan 'G can be placed'on the 1mold prior tosaid then detaching the second flask from its operation and then placedon another mold; mold, leaving the tv vo parts of-t-he mold in dispensinwith a' large number of flasks positonffor pouring.

and Weig ts. In testimony whereof, I have signedmy 40 "I claim naine tothis specification, in the presence The pro'ess 'herein described ofmaking of-two` subscribln witnesses.

'sand molds, said process consisting in first f BRAM C. MOTT, Jn.

inverting. one section ofa mold;4 acing a Witnesses: y

match board with a attern thereon in the Jos. H. KLEIN,

' mold; mounting anot er section of the mold' 4 lvWVM. BARR.

